661271436

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1\times {\mathrm{421}}^1$

素因数の和:732

約数の個数: 144

約数和(自身を含む): 2005506048

約数和(自身を除く): 1344234612

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 271, 276, 322, 414, 421, 483, 542, 644, 813, 828, 842, 966, 1084, 1263, 1449, 1626, 1684, 1897, 1932, 2439, 2526, 2898, 2947, 3252, 3789, 3794, 4878, 5052, 5691, 5796, 5894, 6233, 7578, 7588, 8841, 9683, 9756, 11382, 11788, 12466, 15156, 17073, 17682, 18699, 19366, 22764, 24932, 26523, 29049, 34146, 35364, 37398, 38732, 43631, 53046, 56097, 58098, 67781, 68292, 74796, 87147, 87262, 106092, 112194, 114091, 116196, 130893, 135562, 174294, 174524, 203343, 224388, 228182, 261786, 271124, 342273, 348588, 392679, 406686, 456364, 523572, 610029, 684546, 785358, 798637, 813372, 1026819, 1220058, 1369092, 1570716, 1597274, 2053638, 2395911, 2440116, 2624093, 3194548, 4107276, 4791822, 5248186, 7187733, 7872279, 9583644, 10496372, 14375466, 15744558, 18368651, 23616837, 28750932, 31489116, 36737302, 47233674, 55105953, 73474604, 94467348, 110211906, 165317859, 220423812, 330635718, 661271436]

約数ペア:

[(1, 661271436), (2, 330635718), (3, 220423812), (4, 165317859), (6, 110211906), (7, 94467348), (9, 73474604), (12, 55105953), (14, 47233674), (18, 36737302), (21, 31489116), (23, 28750932), (28, 23616837), (36, 18368651), (42, 15744558), (46, 14375466), (63, 10496372), (69, 9583644), (84, 7872279), (92, 7187733), (126, 5248186), (138, 4791822), (161, 4107276), (207, 3194548), (252, 2624093), (271, 2440116), (276, 2395911), (322, 2053638), (414, 1597274), (421, 1570716), (483, 1369092), (542, 1220058), (644, 1026819), (813, 813372), (828, 798637), (842, 785358), (966, 684546), (1084, 610029), (1263, 523572), (1449, 456364), (1626, 406686), (1684, 392679), (1897, 348588), (1932, 342273), (2439, 271124), (2526, 261786), (2898, 228182), (2947, 224388), (3252, 203343), (3789, 174524), (3794, 174294), (4878, 135562), (5052, 130893), (5691, 116196), (5796, 114091), (5894, 112194), (6233, 106092), (7578, 87262), (7588, 87147), (8841, 74796), (9683, 68292), (9756, 67781), (11382, 58098), (11788, 56097), (12466, 53046), (15156, 43631), (17073, 38732), (17682, 37398), (18699, 35364), (19366, 34146), (22764, 29049), (24932, 26523)]